David s



DAVID S. JACOBUS, OF` JERSEY CITY,` NEW JERSEY. JSLSSIGTEUR` TOTI-IE BABCOCK WILcoX COMPANY, or

JERSEY.

BAYONNE; NEW JERSEY, A CORPORATION OF .NEW

iunalvsroa surronrrne am) HoLDINGYrUaNAcE-WALLS 1N `amNEMENT.`

specification f Letters Patent.

application mea october 9,1917. serial No. 195,541".

To all vwjwnimay concern.:

Be it known that. I, Dario S. JAcoBU-s, a citizen of the `United States, residing at Jersey City, in the county of Hudson, St jte of New Jersey, have'in vented certain new .and useful Improvements in Means for Supporting and Holding;- Furnace-Walls` in Alinement, of which the following is a speciication.

In my application'. Serial No. 90,058,1iled`` April 10, 1916, I have described'a means `.for supporting` the front Wall 'of aboiler setting where the Weight of the Wallis carried, in

part, by struts spaced beneath the wall and,

at intervals along the front of the Stoker so that they do notinterfere with the carrying of a uniform bed'of firefromside to side of the furnace. In that construction I employ special refractory blocks in the Wall which i Wall, requiring` the wall to be held byvmeans y of' tivo sets of the `special refractory `blocks arranged so that double, lines .ofthe refractory blocks come at two different levels in the Wall,`\vhereas in my application Serial No. 90,058one setfonly of the speclal reiracl tory blocks is shown `in the front wall; in

this respect my previous application being` similar to the construction shown' in Fig.

of the present application In the present application I have further shown the struts which serve in assisting to support the Walls as stepped into nuts at their lower ends, which allows for any necessary adjustment in the length of the struts, lwhereas` this adjustment isnot shown in my previous application.. v y

My invention relates to means for supporting and holding a furnace Wall 1n proper alinement and 4will be understood `by reference to the accompanyingdrawings 1n which Flgure 1 1s a side view, partly 1n` section, of a portion of a Stirlingboiler andthe front wall ofthe setting; Fig.` 2 a similar view showing the invention adapted tothe setting of a Babcock Sa VVil'coX type of boiler; Fig. 3 a verticalseotion on the plane of the line 3*-3 lof Fig. 2; Fig. L an enlarged view of a portion of the Wall of Fig;

2 with the hopper of the Stoker mechanism omitted; Fig. 5 a front View of.Fig. e with the tie pieces.

the outer metallic casing broken away; Fig;

,llatente'd Sept. 2, 1919.

til a View partly in plan and partly in hoi-i# `Zonta] section of a row of special tiles or blocks with their engaging tie pieces as used in the walls shown in Figs. 1 and 2, the view fied means for hiilding' the tie pieces; and.

Fig. S a longitudinal section throughone of Similafrreference numerals indicate similar parts in the severalviews. f V

'Referring to Fig. 1, the numeral 1 desig natesithe front bank of tubes of aStirling boiler, and 2 V ter drum and the mud'drum, respectively.`

. The boiler is shown `as fired by an underfeed" Stoker, shown diagrammatically .1n Fig. 1

and more fully in Ifigrrs.` 3` and si. i This stolzer comprises a hopper from which the fuelis `fedinto the `magazines oigretorts 5 from which two cylindri'jal rams` 6 and 7 push it into the furnace.` Alternating with the retorts are the twyer boxes S in each of whichyap series of. tWyers 9 is supported.

Thewall shown in Fig. .1 is without the usual .relieving arch and is built up` above vthe Stoker ledge platevwhich plate comprises top plates 10 of the i retorts and the ltop plates 11.01 the twyer boxes, the latter restingupon the former. The' side Walls of the rest, a1'e `connected by integral Webs 12 assist to support thewveight of the wall. It

is sometimes necessary to` remove one or more twyer sections inorder to repair the stoker, and to effect the removal of the struts g they areshownas threaded `at their lower` .ends and stepped into nutsl by which any necessary adjustment` in the lengthfof the struts may be made.`

The arrangement above described is the same whether the struts are4 employed to` assist in supporting a high Wall asshown in Fig.` 1, 01" alow Wall, as sho-Wn in"Fig. .2.

In both, the struts are spaced beneath the Wal-1" and at intervals along the front of theA stoker mechanisms so thatthey do notinterfere` `with-thecarrying of a` uniformbed of re from side-toside of the furnace.

To maintain the alinement of the` front Wallfand to prevent movement invvardcr and 3 the "front steam and wa#` `tnfyer boxes 8, upon whichjthe plates 10 Ivg l i loutward,.1 build a part of the wall of one 'or -Inore horizontal courses of special tiles or refractory blocks and interlock them by i means of cast iron tie pieces.

Referring to rigs. 2, 4, 5,4 e and s 1 pie?.

ferably lay 'two courses of the special blocks near the gmiddle height of the wall, the blocks being of either of the forms shown in F ig.. 6, that is, they maybe like the blocks '16 having grooves or recesses -17 in their. sides.or,.as.indicated at 18; with a T-groove 19 in the body thereof and opening at'th'e front of the block, such groove being s1m1- lar to that formed'btwo contiguous blocks 16. The latter are s ightly reduced in width a't their-front ends to acconxmodate the webs of the tie pieces as clearly shown in Fig. 6.

The tie pieces are of general T-shape in i section and are formed with a head 20, a web 21, and laterally projecting lugs'22 near their front ends, the' said lugs-and the front `f web 28 being of greater width than lthe web 21, aS 'shown in Fig. '4.- .These tie piecesare preferably `lof cast iron vand are placedin position and the blocks dropped between them,l if the latter arev of the form shown at'16, sc .that the heads of the tie pieces will engage'the grooves 17 of adjacent blocksor will engage` the groove -19 if the form of block 18 is used. Whatever the form of the block, 'the .projectinglower and upper ends of lugs`.22 of the tie pieces engage Z-bars 24 immediately below and above the special blocks. Said bars are rigidly secured, preferably by rivets .to the outermetalli'c casing 25. Brick work Vimmediately below and above ythe said blocks is formed with an inset,4 as 'shown in Fig. 4, so that a space is v. provided between the front ends of the spe- '40- cial blocksand the casing 25 into which space the front portions of the tie pieces ex-I tend. This arrangement.permits the inserpairs to the wa 4'5- without removing-any portion of. the cas-.

ling25. l 2

tionfof lthe tie 1pieces. and the making of rel from inside the .furnace and The space provided arounditlie web 21` of thetie pieces, by reducing'the'width 'ofthe blocks 16A at their front portions, as well as -to-the sidewise expansion of the'blo'cksand of the Wall as a Whole. The expansion of Athe' wall upward cannot cause. an undue strain asithe blocks lwill slip up and down over the tie pieces. IAny tendency of the wall to lean inwfard'will'be resisted by the casing '25 because of the engagement ofthe 22 with 'the Z-bars 24 which latter are i rigidly .secured to the'outer casing.

outward movement will be resisted by they Any casing 25.

In .the structure shown in Fig. 7 the tie pieces are held by two eyebars with no outer Wall casing, the said bars serving to prevent the tie pieces and wall from moving inward 'and at-the same time to prevent the wall from moving outward.

What I claim and desire to secure by Letf ters Patent of the UnitedStates is 1. A steam boiler furnace having a vertically extendingwall with an opening at the bottom thereof, means beneath the wall at the opening to support the wall above the opening, the wall having one or more courses spaced apart, each of the courses having recess d or rooved blocks therein, a fixed meniber adjacent each of the spaced-apart courses and metallic tie pieces, each engaging the grooves or recesses and one of theixed `members to assist in holding the wall in alinement while allowing relatlvely free moyement thereof in a generally verticalplaine.

2. steam boiler furnace havinfr a Ver.- tically extending wall, a-plurality ospacedapart stoking mechanisms beneath the wall and on whichlthe wall rests, the wall having one or more courses spaced apart, each of' the courses having recessed or grooved blocks therein, a fixed member adj aeent each of the spacedapart courses and metallic tie pieces, each engaging the grooves or4 recesses andA one of `the vfixed members to assist in holding the wall in alinement while allowing relatively free movement/thereof in a. generally vertically plane. p

3. A steam boiler furnace havin a vertically extending wall, a pluralityo spacedapart'stoking mechanisms operating beneath the wall, a plurality of vertlcal spaced-apart struts assisting to support the wall, the -wall having one or more courses spaced apart, each of the courses having recessed or groove'd blocks therein, a fixed member ad Jacent each of the vspaced-.apart courses and metallic tie pieces, each engaging the rooves or recesses and one of the fixed mem ers to assist in'liolding the wall in alinem'ent while allowing relatively free movement thereof in a generally vertical plane.

In/testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

Witnesses:

' J. KING,

JOHN A. W. DrxoN.- j

Dfi-VID s. `JAcoBUs.l y l 

